Energy Storage Type Voltage Sag Management Device (VQCP)
The VQCP is a high-reliability power supply protection device based on energy storage technology and seamless voltage source switching technique. It uses independent power modules as base units, which can be paralleled to expand capacity according to different requirements. It continuously monitors the system power supply voltage, and upon detecting a deviation from the rated voltage level, the thyristor is disconnected. By controlling the output of the PWM converter and via an injection transformer, it supplies power to the load, ensuring that the protected load is not affected by voltage sags.
Parameter
System parameters
Rated capacity30~1000kVA
Operating voltage class208V~480V
Rated supply frequency50Hz
Efficiency of complete machine>98%
Connection mode3P4W
Performance indicators
Correction capability0～130% remaining supply voltage corrected to 100% for 0.5s~3s; longer durations can be customized.
Start threshold range-10%~+10% (adjustable)
Voltage regulation precision <2%
Fault bypassEquipped
Maintenance bypassOptional
Compensation response time<700us
Total response time <2ms
Voltage distortionUnder the condition of a linear load, THDu<2%
Human-machine interaction
Display screen7-inch touch screen
Parameter settings and data displayOperating status, main wiring diagram, operation records, electrical parameter data, fault records, etc.
Incident and data loggingEquipped with event and data recording functions
Communication interfaceLAN/RS485/GPRS/Dry Contact
Communication protocolModbus Protocol
Mechanical characteristics
Combination modeFull cabinet style, cabinet color (Chinese standard RAL7035) / or as customized by the customer
Incoming modeBottom in/bottom out, or as customized by the customer
Load requirements
Load power factor0.5 (lag) ~ 0.9 (lead)
Environmental requirements
Altitude<2000m; for altitudes over 2000 meters, use according to derating requirements specified in GB/T3859.2
Operating temperature-10℃~+45℃
Relative humidity<95%, no condensation
IP gradeIP20, other protection levels can be customized
Pollution grade2
Noise<65db
Cooling modeAir cooling
Standards to be followed
StandardDL/T1229-2013 Dynamic Voltage Restorer Technical Specifications SemiF47
